SEALSQ Deploys Post-Quantum Cryptography to Bolster Blockchain Security
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SEALSQ Corp is fortifying blockchain security against the future threat of quantum computing by deploying post-quantum cryptographic technologies directly into its hardware and software products. Recognizing that current quantum systems, while limited, are rapidly advancing, the company is implementing a crypto-agile, quantum-resilient security architecture to protect blockchain ecosystems before large-scale quantum computers become operational. This involves integrating algorithms selected by the National Institute of Standards and Technology, including CRYSTALS-Kyber and CRYSTALS-Dilithium, into secure elements and chips to establish a hardware root-of-trust for key storage and generation. SEALSQ is collaborating with Swiss Blockchain platform WeCan to apply these technologies to financial transactions, incorporating secure multiparty computation and zero-knowledge proof frameworks; as a result, the company aims to anchor blockchain private keys in certified secure hardware, mitigating risks from key extraction and potential quantum decryption. SEALSQ Addresses Quantum Threats to Blockchain with Post-Quantum Cryptography The potential arrival of sufficiently powerful quantum computers presents a clear and present danger to current blockchain security. While a few thousand qubits could theoretically compromise existing systems, SEALSQ Corp. asserts that real-world quantum error correction demands tens of millions, or even billions, of physical qubits to break RSA or elliptic curve cryptography. Recognizing this escalating threat, SEALSQ is proactively fortifying blockchain infrastructures with post-quantum cryptographic technologies integrated at both the hardware and protocol levels, anticipating a future where current encryption standards will be obsolete. This is not simply a matter of software updates; the company is embedding NIST-selected post-quantum cryptographic algorithms, like CRYSTALS-Kyber and CRYSTALS-Dilithium, directly into its secure elements and Trusted Platform Module (TPM)-class chips. This hardware-centric approach establishes a root-of-trust, safeguarding private keys from extraction and side-channel attacks, while simultaneously preparing for potential quantum decryption. SEALSQ extends this protection by integrating post-quantum digital signatures into blockchain transactions, ensuring long-term non-repudiation and resistance against forgery, supported by PKI infrastructures upgraded to support post-quantum cryptographic certificates. The company’s ambitions extend beyond terrestrial networks; through its subsidiary, WISeKey, and the SEALCOIN platform, SEALSQ is applying this architecture to machine-to-machine transactions, initially within satellite networks like WISeSat.Space.
Carlos Creus Moreira, Founder and CEO of SEALSQ, stated that “Quantum computing represents both a challenge and an opportunity.” By embedding post-quantum cryptography directly into semiconductors, blockchain protocols, and space-based infrastructure, the company is taking a proactive approach to this shift, ensuring that trust in digital systems is not only preserved, but significantly strengthened. By combining post-quantum cryptography with asynchronous Byzantine Fault Tolerance, SEALSQ aims to deliver both cryptographic and network-level resilience for a future quantum-safe blockchain ecosystem. CRYSTALS-Kyber & CRYSTALS-Dilithium Integrated into Secure Hardware Elements SEALSQ Corp is embedding post-quantum cryptographic algorithms directly into the foundational hardware securing digital transactions and blockchain technologies, anticipating the eventual arrival of quantum computing capabilities capable of breaking current encryption standards. These lattice-based cryptographic methods are being embedded into SEALSQ’s secure elements and Trusted Platform Module (TPM)-class chips, establishing a hardware root-of-trust for secure key generation and storage. This approach mitigates risks like key extraction and side-channel attacks, offering a more robust defense than software-based solutions alone. This hardware-centric security extends beyond basic blockchain functionality. SEALSQ combines post-quantum cryptography with asynchronous Byzantine Fault Tolerant (aBFT) consensus, and through its subsidiary SEALCOIN.AI, is extending this architecture into machine-to-machine transaction infrastructures, including satellite networks like WISeSat.Space. Our strategy is to integrate security at every layer of the technology stack, from hardware to decentralized networks, so that governments, enterprises, and critical industries can operate with confidence in the quantum era.Carlos Creus Moreira, Founder and CEO of SEALSQ WeCan Collaboration: PQC Secures Financial Transactions & aBFT Consensus SEALSQ Corp is integrating post-quantum cryptography into financial blockchain systems, beginning with a collaboration with the Swiss platform, WeCan. The core of this security enhancement lies in algorithms like CRYSTALS-Kyber for key encapsulation and CRYSTALS-Dilithium for digital signatures, replacing traditional elliptic curve schemes. This dual approach extends beyond simple blockchain functionality, reaching into machine-to-machine transactions through the SEALCOIN.AI platform and its decentralized physical infrastructure network (DePIN) technology. The company is extending this architecture into space-based infrastructure via its WISeSat.Space subsidiary, enabling secure satellite communications and orbital transactions. Through WISeID.com, SEALSQ also delivers decentralized identity frameworks secured with post-quantum cryptography, bolstering authentication of users, devices, and satellites. This comprehensive strategy, encompassing hardware, protocols, and distributed networks, aims to establish a robust, quantum-resilient foundation for financial systems and the burgeoning space economy, ensuring continued trust in digital transactions even as quantum computing capabilities advance. By embedding post-quantum cryptography directly into semiconductors, blockchain protocols, and space-based infrastructure, we are taking a proactive approach to this shift, ensuring that trust in digital systems is not only preserved, but significantly strengthened.Carlos Creus Moreira, Founder and CEO of SEALSQ WISeKey Ecosystem Extends PQC to Space & Machine Economies The convergence of blockchain technology and the looming threat of quantum computing is driving a new wave of security enhancements, extending even to the infrastructure supporting machine economies and space-based systems. SEALSQ Corp is fortifying digital transaction networks through the implementation of post-quantum cryptographic technologies, not just at the software level, but directly within hardware components. While the precise number of qubits required to break current encryption standards remains a subject of debate, with estimates ranging into the millions due to the complexities of quantum error correction, SEALSQ is proactively building a crypto-agile architecture designed to withstand future quantum attacks. This hardware-centric approach anchors blockchain private keys, mitigating risks associated with key extraction and side-channel attacks. The company’s efforts extend beyond traditional blockchain applications, reaching into the realm of machine-to-machine interactions through the SEALCOIN.AI platform, which facilitates secure transactions between autonomous devices. Initially tested within satellite networks via the WISeSat.Space subsidiary, the SEALCOIN protocol aims to establish a cross-industry transaction layer for diverse sectors including energy, mobility, and data communication. SEALSQ is leveraging its WISeID.com digital identity platform to deliver decentralized identities secured with post-quantum cryptography, ensuring robust authentication of users, devices, and even satellites. While a few thousands qubits could theoretically compromise RSA or elliptic curve cryptography using Shor’s algorithm, real-world constraints such as quantum error correction increase this requirement to tens of millions or even billions of physical qubits depending on implementations assumptions.SEALSQ Source: https://www.globenewswire.com/news-release/2026/03/20/3259796/0/en/SEALSQ-Deploys-Post-Quantum-Cryptography-to-Secure-Blockchain-and-Digital-Transaction-Infrastructures-Through-the-Deployment-of-Post-Quantum-Cryptographic-PQC-Technologies.html Tags: